4). Malfunction determination :
a).Working Voltage = Over 10V.
b).Electrical resistance value = 6.7~~10.5Ω
a). If the O
2
Sensor signal fluctuates between 100 ~ 900 mV, the close-loop pollution control
system is normal. If not in this range, the system is abnormal.
5). Abnormal phenomenon and treatment:
a). Sensor damaged, broken wire around the Heater, or bad contact of couplers.
b). O
2
Sensor abnormal, replace with a new sensor and test again.
7. Roll over Sensor:
1). Picture Illustration:
2). Main Function
When the vehicle topping off more than 65 degrees, ECU will shut down the whole system.
You will have to key-on and off again to start the engine again.
3). Abnormal phenomenon and treatment:
a). Sensor damaged or bad contact couplers.
b). Roll over sensor abnormal, replace with a new sensor.
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